Knife blade



FIG. 1 is a front perspective view of the knife blade showing my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a front view thereof; and,

FIG. 4 is a rear view thereof.

The left side view is a mirror image of the right side view shown in FIG. 2.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a knife blade, as shown and described. 